Who was the Saints best screen pass running back
Joining the vast majority of the posters in stating the blatantly obvious it's Pierre Thomas. (y)
The three most beautifully-executed screen passes in team history had PT as the ball carrier and were all TDs --all in the Super Bowl year in '09. They came versus the Patriots in the regular season, versus the Vikings in the NFCCG and then in the Super Bowl itself.
As a nod to a previous era, though, it would've been awesome to see Dalton Hilliard in the Payton offense. Often times, Hilliard made the yards after the catch all by himself. The Mora-era linemen weren't nearly as agile as the early Payton-era linemen.